KR101611572B1 - Apparatus for forming patterns on the surface of steel pipe - Google Patents

Apparatus for forming patterns on the surface of steel pipe Download PDF

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Publication number
KR101611572B1
KR101611572B1 KR1020150187153A KR20150187153A KR101611572B1 KR 101611572 B1 KR101611572 B1 KR 101611572B1 KR 1020150187153 A KR1020150187153 A KR 1020150187153A KR 20150187153 A KR20150187153 A KR 20150187153A KR 101611572 B1 KR101611572 B1 KR 101611572B1
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KR
South Korea
Prior art keywords
metal pipe
pipe
housing
vertical member
plunger
Prior art date
Application number
KR1020150187153A
Other languages
Korean (ko)
Inventor
정종현
Original Assignee
주식회사 성은이엠
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/025—Stamping using rigid devices or tools for tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/027—Combined feeding and ejecting devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones

Abstract

The present invention relates to a pattern forming machine for a metal pipe capable of forming various patterns on the surface of a metal pipe.
A molding machine for a metal pipe according to the present invention comprises a base frame supported on a ground, a main cylinder installed at a front end of the base frame, a horizontal pipe supported horizontally on the base frame so that the rod of the main cylinder passes through the inside, A pipe provided at a rear end of the base frame for horizontally moving a metal pipe to be formed forward, a housing fixed to a rear end of the horizontal pipe and inserted into a metal pipe, A plunger for horizontally moving the inside of the housing in the forward and backward directions according to the operation of the main cylinder and a plunger which is installed inside the housing and protrudes from the plunger when the plunger is retracted to the outside of the housing, Shaped inner mold to be pressurized, and an inner mold positioned between the housing and the pipe supply portion, And an outer mold for closely supporting the outer circumferential surface of the forming part of the metal pipe when the metal mold presses the inner circumferential surface of the metal pipe.

Figure R1020150187153

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a pattern forming machine for a metal pipe capable of forming various patterns on the surface of a metal pipe.

Generally, street lamps are installed on roads, alleys and parks so that cars or pedestrians can conveniently move at night.

The street lamp includes a street lamp fixed to the ground and a cross bar fixed to the street lamp, and a lamp is mounted on the end of the cross bar toward the ground.

Since the streetlight is installed outdoors, the streetlight is made of a steel pipe made of a metal material such as steel or stainless steel, since it has a predetermined physical strength and a certain supporting force.

An embossing projection molding apparatus of a metal pipe proposed by the applicant of the present invention is known from Korean Patent No. 924770 so as to prevent embossing protrusions on the surface of a street lamp by reducing the wind resistance to the maximum, have.

In recent years, embossing protrusions can not sufficiently resist the bending strength and compressive strength acting on the street lamps, which have a length longer than the cross-sectional area and have a feature of being manufactured to have a thin thickness, so that straight embossing protrusions And the present invention has been proposed in Korean Utility Model Registration No. 460508 by the present applicant.

However, the conventional street lighting lamps having the embossing protrusions have a problem in that they can not satisfy the various demands of the consumers in terms of design because they are manufactured only in limited shapes such as embossing protrusions or straight embossing protrusions.

It is an object of the present invention to provide a pattern forming machine for a metal pipe capable of forming various patterns on the surface of a metal pipe.

In order to achieve the above object, the present invention provides a pattern forming machine for a metal pipe, comprising: a base frame supported on a ground; a main cylinder disposed at a front end of the base frame; A horizontal pipe supported horizontally; a pipe supply part installed at a rear end of the base frame for horizontally moving a metal pipe to be formed forward; a housing fixed to a rear end of the horizontal pipe and inserted into a metal pipe; A plunger fastened to the rod end of the main cylinder and horizontally moving in the forward and backward directions inside the housing according to the operation of the main cylinder, and a plunger provided inside the housing, the plunger being pushed by the plunger to protrude to the outside of the housing An inner mold having an arc shape for pressing the inner circumferential surface of the forming part of the metal pipe, And an outer mold positioned between the supply part and the outer mold for closely supporting the outer circumferential surface of the forming part of the metal pipe when the inner mold presses the inner circumferential surface of the metal pipe; A plurality of cylinders arranged at uniform intervals in a fixed support so that the rod is drawn out in a direction orthogonal to the center axis of the metal pipe; An outer mold block provided at an end of the metal pipe and brought into close contact with the outer circumferential surface of the metal pipe and an auxiliary support for supporting the drawn rod so as not to be drawn into the cylinder by the pressure transmitted from the inner mold; A pair of first link arms hingedly coupled at one end to both sides of the outer mold block, a pair of second link arms hinged at one end to both sides of the fixed support, And a third link arm hinged to the side of the first link arm and hinged to the other end of the first link arm and the second link arm.

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A first vertical member fixed vertically to a rear end of the base frame so as to support a strong forming load applied to the pipe supply unit; a second vertical member vertically fixed to an upper end of the outer mold; A horizontal support bar having both ends fixed to the vertical member and the second vertical member, a third vertical member vertically installed at the upper end of the pipe supply unit, and a pipe support member installed at the upper end of the third vertical member, And an auxiliary supporting means composed of rollers rolling on the bottom surface of the horizontal support bar when the rollers contact the rollers.

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Since the pattern forming machine of the present invention having the above-described structure can easily and easily mold various patterns on the surface of the metal pipe in an embossed form, it is possible to provide a metal pipe of various designs to a consumer at low cost. In the case of being used as a streetlight, the pattern is formed in a straight or curved emboss shape in various directions, so that the direction of the wind flowing along the surface of the streetlight lamp, such as a dimple formed on the surface of a golf ball or a baseball ball, It is possible to minimize the resistance of the wind on the street lamp surface and also to enhance the bending strength and compressive strength of the street lamp while the pattern acts as a bead.

1 is a perspective view of a pattern forming machine for a metal pipe according to an embodiment of the present invention;
2 is a sectional view of a housing constituting the present invention.
3 is a side view of an outer mold constituting the present invention.
4 is a view showing an operation state of an auxiliary support member constituting the present invention;
5 and 6 are cross-sectional views, respectively, of a state in which the present invention is in use;
FIG. 7 is a perspective view illustrating an example of a street lamp manufactured using a patterning machine for a metal pipe according to the present invention. FIG.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It must be interpreted in terms of meaning and concept.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. The same reference numerals are used for the same components, and only the different portions are described for the sake of clarity.

1, a pattern molding machine for a metal pipe according to the present invention comprises a base frame 110 supported on a ground, a main cylinder 120 installed at a front end of the base frame 110, A horizontal pipe 130 which is horizontally supported on the base frame 110 so as to pass through a rod 121 of the base frame 110; A housing 150 fixed to a rear end of the horizontal pipe 130 and inserted into a metal pipe; a main cylinder 120 coupled with an end of the rod 121 of the main cylinder 120; The plunger 160 is horizontally moved in the forward and backward directions inside the housing 150 according to the operation of the plunger 160. The plunger 160 is installed inside the housing 150, And protrudes to the outside of the housing 150, Shaped inner mold 170 that presses the inner circumferential surface of the metal mold 170 when the inner mold 170 is positioned between the housing 150 and the pipe supply unit 140 and presses the inner circumferential surface of the metal pipe, And an outer mold 180 for supporting the outer mold 180 closely.

The base frame 110 is installed horizontally in the front and rear direction on the ground, and the conveyor 111 is installed at a rear end thereof in a predetermined section.

A main cylinder 120 is installed at the front end of the base frame 110 so that the rod 121 is operated in the forward and backward directions. The horizontal tube 130 is horizontally supported at the rear of the main cylinder 120. The rod 121 of the main cylinder 120 passes through the horizontal pipe 130 inward.

A pipe supply part 140 for horizontally moving the metal pipe to be formed while moving forward along the conveyor 111 provided at the rear end of the base frame 110 is installed at the rear end of the base frame 110.

The pipe supply part 140 includes a body part 141 provided to be movable back and forth along the conveyor 111 and a clamper 142 provided at the center of the body part 141 for fixing the rear end of the metal pipe to be molded And supporting means 143 for supporting the body portion 141 so that the body portion 141 does not flow due to a strong external force applied to the rear portion in the molding.

The supporting means 143 includes a pair of rails 143a arranged in parallel with the conveyor 111 of the base frame 110 and formed with right angled triangular prisms with the inclined surface facing backward at regular intervals and a pair of rails 143a And a pair of support bars 143b provided on the rear surface of the body portion 141 so as to be supported by the teeth of the body 141. [

The supporting means 143 includes a connecting rod 143c hinged to both ends of the supporting bar 143b and a connecting rod 143c installed on the rear surface of the body 141 to receive the connecting rod 143c, And a vertical holder 143d having a receiving groove having a shape corresponding to the outer circumferential surface of the base 143c.

Accordingly, when the operator lifts the connecting rod 143c, the supporting bar 143b is rotated upward along the connecting rod 143c, and the supporting state of the supporting bar 143b and the teeth is released in this process. In this state, when the operator turns the connecting rod 143c and places the connecting rod 143c on the upper end of the vertical receiving portion 143d, the releasing state between the supporting bar 143b and the teeth can be stably maintained

It is preferable that the supporting means 143 is further provided with auxiliary supporting means 144 because it is difficult to support a strong load applied to the pipe supplying portion 140 during the molding process. In this case, the auxiliary supporting means 144 may include a first vertical member 144a, a second vertical member 144b, a horizontal support bar 144c, a third vertical member 144d, and a roller 144e. have.

The first vertical member 144a is installed at the rear end of the base frame 110. [ Since the first vertical member 144a must support a strong load generated from the pipe supply part 140 upward and rearward during the molding process, the first vertical member 144a should be made of a material having high strength. In order to prevent the flow, It must be firmly fixed using a member.

The second vertical member 144b is installed in front of the first vertical member 144a. The second vertical member 144b is installed at the upper end of the fixed support 181. Since the second vertical member 144b is required to bear a strong load acting on the pipe supply unit 140 during the molding process like the first vertical member 144a, the second vertical member 144b should be made of a material having high strength, And a fastening member such as a nut.

The horizontal support bar 144c is firmly fixed to the upper ends of the first vertical member 144a and the second vertical member 144b at both ends thereof to support a strong load acting upward on the pipe supply unit 140 during the molding process . Therefore, the horizontal support bar 144c should be made of a material having high strength and be fixed firmly using a fastening member such as a bolt and a nut so as not to generate a flow. In this embodiment, an "I" -shaped steel having an excellent upward bending strength is employed as the horizontal support bar 144c.

The third vertical member 144d is vertically installed at the upper end of the pipe supply part 140. [ The roller 144e is installed at the upper end of the third vertical member 144d so as to roll in the forward and backward directions along the bottom surface of the horizontal support bar 144c.

Therefore, when the pipe supply unit 140 moves forward to horizontally move the metal pipe forward, the roller 144e comes into rolling contact along the bottom surface of the horizontal support bar 144c.

In this case, when the upper end of the third vertical member 144d is formed to protrude frontward and the roller is installed at the protruding end portion, when the load is transmitted to the third vertical member 144d rearwardly, the roller 144e The rolling motion can be performed in a more stable state.

 In the present embodiment, the third vertical member 144d is constituted by a pair of vertical panels facing each other at regular intervals so as to ensure stable rolling contact of the roller 144e, and both ends of the rotation axis of the roller 144e And is fitted to the upper end of the vertical panel.

According to the present invention, a housing 150 is installed at the rear end of the horizontal tube 130. The housing 150 is inserted into the metal pipe when the metal pipe is moved forward through the pipe supply part 140.

2, the housing 150 includes a first housing 151 having a front end coupled to a rear end of the horizontal pipe 130, and a front end coupled to a rear end of the first housing 151 And a second housing 152 having a through hole 152a formed on the outer peripheral surface of the rear end in the direction of the center of the horizontal tube 130. The reason why the housing 150 is divided into the first housing 151 and the second housing 152 is that the first housing 151 and the second housing 152 have an appropriate size according to the diameter of the metal pipe to be molded So that it can be exchanged.

A plunger 160 is installed at an end of the rod 121 of the main cylinder 120 to horizontally move the inside of the housing 150 in the forward and backward directions according to the operation of the main cylinder 120.

An inner mold 170 is installed in the through-hole 152a of the second housing 152. The inner mold 170 is inserted into the through hole 152a so as to protrude to the inside of the second housing 152 so as to protrude out of the through hole 152a by being pushed by the plunger 160 when the plunger 160 is retracted Respectively. A groove portion 152b is formed on an inner circumferential surface of the through hole 152a to limit a movement range of the inner mold 170. An outer circumferential portion of the inner mold 170 is fitted with a fitting portion 171 corresponding to the groove portion 152b. As shown in Fig.

The elastic member 172 is installed in the through hole 152a of the second housing 152 so that the inner mold 170 protruding outside the second housing 152 can return to the original position. The elastic member 172 is compressed while pressed by the inner mold 170 when the inner mold 170 protrudes outward from the second housing 152.

The outer circumferential surface of the inner mold 170 is formed in a shape corresponding to the inner circumferential surface of the metal pipe so that the inner circumferential surface of the inner circumferential surface of the metal pipe 170 is pressed in a state in which the entire surface thereof is in close contact with the inner circumferential surface of the metal pipe. .

Accordingly, when the plunger 160 moves backward, the inner mold 170 is pushed by the plunger 160 and protrudes to the outside of the second housing 152, and is brought into close contact with the inner circumferential surface of the metal pipe. The pattern of the embossing formed on the outer circumferential surface of the metal pipe presses the inner circumferential surface of the metal pipe strongly, thereby forming the pattern on the surface of the metal pipe.

3, the outer mold 180 includes a fixed support 181 installed on the base frame 110 to allow the metal pipe P to pass through the center, a direction perpendicular to the central axis of the metal pipe P, A plurality of cylinders 182 disposed at uniform intervals in the fixed support 181 to draw out the rod 182a and an outer mold block 182 provided at an end of the rod 182a and brought into close contact with the outer circumferential surface of the metal pipe P, (183).

The outer mold block 183 is formed in an annular shape so as to be closely contacted with the outer circumferential surface of the metal pipe P and a pattern corresponding to the inner mold 170 is formed on the inner circumferential surface of the outer mold block 183.

The outer mold block 183 forms a pair with the inner mold 170 while supporting the outer circumferential surface of the metal pipe P when the inner mold 170 presses the inner circumferential surface of the metal pipe P, Mold the pattern on the surface.

In this case, the outer mold 180 further includes an auxiliary support 190 for supporting the drawn rod 182a so as not to be drawn into the cylinder 182 due to the pressure transmitted from the inner mold 170.

As shown in FIG. 4, the auxiliary support 190 is preferably composed of link arms that are extended when the rod 182a is pulled out and folded when the rod 182a is pulled. In this case, the link arms include a pair of first link arms 191 having one end hinged to both sides of the outer mold block 183, a pair of second link arms 191 having one end hinged to both sides of the fixed support 181, A link arm 192 and one end hinged to the side of the rod 182a of the cylinder 182 and the other end hinged to the other end of the first link arm 191 and the second link arm 192. [ 3 link arm 193 as shown in Fig.

When the rod 182a of the cylinder 182 is completely advanced so that the outer mold block 183 is brought into close contact with the surface of the molding portion of the metal pipe P, the third link arm 193 is moved along the rod 182a The first link arm 191 and the second link arm 192 are pushed to the outside of the rod 182a so that the first link arm 191 and the second link arm 192 are in a straight line state. When the first link arm 191 and the second link arm 192 are in a straight line state, the pressure transmitted from the inner mold 170 is effectively supported. Therefore, the outer mold block 183 does not retreat, .

The first link arm 191 and the second link arm 192 are connected to the rod 182a and the second link arm 182b are connected to each other while the third link arm 193 returns to the original position along the rod 182a, So that the second link arm 192 and the third link arm 193 are folded toward the rod 182a side.

The pattern forming machine of the metal pipe of the present invention having the above-described structure is operated as follows.

5, when the metal pipe P is fixed to the pipe supply unit 140, the metal pipe P to be formed moves forward as the conveyor 111 operates.

The metal pipe P moving forward moves through the fixing support 181 of the outer mold 180 and at the same time the housing 150 is inserted inward. The movement of the conveyor 111 is stopped and the cylinder 182 of the outer mold 180 is moved to the position of the rod 182. When the mold 181 is placed on the same vertical line as the inner mold 170 and the outer mold block 183, And the outer mold block 183 is brought into close contact with the outer circumferential surface of the metal pipe P. When the outer mold block 183 is in close contact with the outer circumferential surface of the metal pipe P, the main cylinder 120 pulls the rod 182a to move the plunger 160 rearward.

6, when the plunger 160 is moved rearward, the inner mold 170 provided on the housing 150 is pushed by the plunger 160 to move toward the inner circumferential surface of the metal pipe P. As a result, The embossed pattern formed on the outer circumferential surface of the inner mold 170 engages with the engraved pattern of the embossed pattern formed on the inner circumferential surface of the outer mold 180 while the surface of the metal pipe P located between the inner mold 170 and the outer mold 180 A sophisticated pattern P1 is formed.

In the process of moving the plunger 160 rearward, the metal pipe P is subjected to a strong molding load acting backward, but the support bar 143b of the pipe supply part 140 supporting the metal pipe P Since it is supported by the teeth of the rail 143a, it is not pushed rearward in the pattern forming process.

In addition, when the auxiliary supporting means 144 is further provided, a strong forming load acts on the pipe feeding portion 140 rearwardly so that the body portion 141 of the pipe feeding portion 140 is twisted upward The roller 144e provided on the upper end of the third vertical member 144d is supported by the horizontal support bar 144c so that the body 141 is not lifted up or twisted upward.

Therefore, since no flow is generated in the metal pipe (P) by the support means (143) and the auxiliary support means (144), the pattern molding is finely performed.

The outer mold block 183 returns to its original position after the pattern is formed on the surface of the metal pipe P and the elastic member 172, which has been compressed while the main cylinder 120 moves the plunger 160 rearward, The inner mold 170 returns to its original position. When the clamping state of the metal pipe P is released in this state and then the transfer conveyor 111 is moved backward and the metal pipe P having been subjected to the pattern molding is separated from the apparatus of the present invention, It is possible to obtain the metal pipe P having the pattern P1 formed thereon.

Therefore, it is possible to easily and easily form any desired patterns of various shapes on the surface of the metal pipe P. [

In addition, when the street lamp is manufactured, it is possible not only to manufacture the street lamps of various designs by forming the pattern on the surface of the street lamp, but also to form the straight or curved embossed patterns in various directions on the surface of the street lamp, (Dimple) formed on the surface of a ball or a baseball, the resistance of the wind on the surface of the street lamp is minimized while changing the direction of the wind flowing along the surface of the street lamp. At the same time, the pattern acts as a bead, The compressive strength is greatly improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be takeners of ordinary skill in the art, And such variations are within the scope of the present invention.

110 ... base frame 120 ... main cylinder
121 ... load 130 ... horizontal tube
140 ... pipe supply part 144 ... auxiliary supporting means
144a ... first vertical member 144b ... second vertical member
144c ... horizontal support bar 144d ... third vertical member
144e ... roller 150 ... housing
160 ... plunger 170 ... inner mold
180 ... outer mold 181 ... fixed support
182 ... cylinder 182a ... rod
183 ... outer mold block 190 ... auxiliary support
191 ... first link arm 192 ... second link arm
193 ... Third link arm P ... Metal pipe

Claims (6)

A horizontal tube supported horizontally on the base frame so that the rod of the main cylinder passes through the inside of the base cylinder; A metal pipe fixed to the rear end of the horizontal pipe and inserted into the metal pipe; and a valve body coupled to the rod end of the main cylinder, The inner mold is horizontally moved in the forward and backward directions and the inner mold is pressurized on the inner circumferential surface of the molding part of the metal pipe while being protruded to the outside of the housing by being pushed by the plunger when the plunger is retracted, The inner mold being positioned between the housing and the pipe supply portion, When the pressure and comprising an outer mold which supports close contact with an outer peripheral surface forming section of the metal pipe;
A plurality of cylinders arranged at uniform intervals in a fixed support so that the rod is drawn out in a direction orthogonal to the center axis of the metal pipe; An outer mold block provided at an end of the metal pipe and brought into close contact with the outer circumferential surface of the metal pipe and an auxiliary support for supporting the drawn rod so as not to be drawn into the cylinder by the pressure transmitted from the inner mold;
A pair of first link arms hingedly coupled at one end to both sides of the outer mold block, a pair of second link arms hinged at one end to both sides of the fixed support, And a third link arm hinged to a side of the first link arm and hinged to the other end of the first link arm and the second link arm. delete delete delete The method according to claim 1,
A first vertical member fixed vertically to a rear end of the base frame to support a strong forming load applied to the pipe supply unit, a second vertical member vertically fixed to an upper end of the outer mold, A horizontal support bar having both ends fixed to the second vertical member, a third vertical member vertically installed at the upper end of the pipe supply unit, and a horizontal support bar installed at the upper end of the third vertical member, Further comprising: an auxiliary supporting means formed of rollers rolling along the bottom surface of the support bar. delete
KR1020150187153A 2015-12-28 2015-12-28 Apparatus for forming patterns on the surface of steel pipe KR101611572B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101720668B1 (en) * 2016-11-15 2017-03-28 두성산업 (주) Dimple Machining apparatus for metal pipes
KR101868064B1 (en) 2018-02-28 2018-07-19 보 현 이 Manufacturing device for embossing metal pipe to enable easier weld both sides of embossing sheet metal and process for preparing the same
KR101933106B1 (en) 2018-09-20 2019-03-15 보 현 이 The apparatus of manufacturing embossing stainless steel pipe and the method of preparing embossing stainless steel pipe using it
WO2019168260A1 (en) 2018-02-28 2019-09-06 이보현 Engraved and embossed embossing mold roller having interlocking structure used for manufacturing embossed metal pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482600B1 (en) 2003-05-14 2005-04-14 현대자동차주식회사 A clamping device for parts mounting loader of vehicle
KR100924770B1 (en) * 2008-12-31 2009-11-05 주식회사 성은이엠 Apparatus for molding embossing lug of steel pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482600B1 (en) 2003-05-14 2005-04-14 현대자동차주식회사 A clamping device for parts mounting loader of vehicle
KR100924770B1 (en) * 2008-12-31 2009-11-05 주식회사 성은이엠 Apparatus for molding embossing lug of steel pipe

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101720668B1 (en) * 2016-11-15 2017-03-28 두성산업 (주) Dimple Machining apparatus for metal pipes
KR101868064B1 (en) 2018-02-28 2018-07-19 보 현 이 Manufacturing device for embossing metal pipe to enable easier weld both sides of embossing sheet metal and process for preparing the same
WO2019168259A1 (en) 2018-02-28 2019-09-06 이보현 Embossed pipe manufacturing apparatus for easily welding both sides of embossed metal sheet and embossed pipe manufacturing method using same
WO2019168260A1 (en) 2018-02-28 2019-09-06 이보현 Engraved and embossed embossing mold roller having interlocking structure used for manufacturing embossed metal pipe
CN111432953A (en) * 2018-02-28 2020-07-17 李甫铉 Female and male embossing die roller for manufacturing mutually-meshed structure of embossed metal pipe
CN111432953B (en) * 2018-02-28 2021-10-15 李甫铉 Female and male embossing die roller for manufacturing mutually-meshed structure of embossed metal pipe
KR101933106B1 (en) 2018-09-20 2019-03-15 보 현 이 The apparatus of manufacturing embossing stainless steel pipe and the method of preparing embossing stainless steel pipe using it
WO2020059969A1 (en) 2018-09-20 2020-03-26 이보현 Embossed stainless pipe manufacturing apparatus and embossed stainless pipe manufacturing method using same

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